Hi everyone! Read through the material below, watch the videos, work on the Word lecture and follow up with your instructor if you have questions.
- Assign probabilities to events using counting methods.
Topic. This lesson covers: Experiments Having Equally Likely Outcomes
- Introductory Statistics by Sheldon Ross, 3rd edition: Sections 4.4
WeBWorK. Continue working on Set 3.1
Watch the video Probability Models.
- What is a probability model?
- Describe the sample space for the sum of two dice.
- What is the probability of rolling two dice and getting a sum of seven?
- If you know the probability that event A occurs, how do you calculate the probability that event A does not occur?
- What probability can you find using the Addition Rule?
- What probability can you find using the Multiplication Rule?
How many 5-person committees are possible from a group of 11 people if:
a) There are no restrictions.
b) Both Jim and Mary must be in the committee.
c) Either Jim or Mary (but not both) must be on the committee.